Crossover Aptitude Test Logical Reasoning 5

Question 1

Which statement is the contrapositive of 'If it is a dog, then it is a mammal'?

Accepted Answer

If it is not a mammal, then it is not a dog

Answer

The contrapositive of 'If P then Q' is 'If not Q then not P': 'If not a mammal, then not a dog.'

Question 2

A manager evaluates candidates: candidates who score above 80 on logic AND above 70 on communication pass. Candidate A scores 85 logic, 65 communication. What happens?

Accepted Answer

A fails — both conditions must be met

Answer

Both conditions are required (AND logic); since communication is 65 < 70, A fails.

Question 3

A project has tasks A, B, C, D. B depends on A. C depends on A. D depends on B and C. What is the minimum number of sequential stages to complete the project?

Accepted Answer

3

Answer

Stage 1: A; Stage 2: B and C (parallel); Stage 3: D — so 3 sequential stages are needed.

Question 4

Which best describes the logical flaw: 'This medicine works — my cold got better after I took it.'

Accepted Answer

Post hoc ergo propter hoc

Answer

This is 'post hoc ergo propter hoc': assuming that because B followed A, A caused B.

Question 5

There are 4 cards on a table showing: 3, 8, A, D. Rule: 'If a card shows an even number on one side, it must show a vowel on the other.' Which cards must you flip to verify the rule?

Accepted Answer

8 and D

Answer

Flip 8 (even, check for vowel) and D (consonant, check it doesn't hide an even number).

Crossover Aptitude Test Practice Test

Crossover Aptitude Test Practice Test

Crossover Aptitude Test Logical Reasoning 5